Trigger type nozzle



April 21, 1959 I v 1.. lit-NELSON TRIGGER TYPE NOZZLE Filed Feb. 14, 1957 INVENTOR [en a2? 1? fi e/5012.

ATTORNEY J United States Patent TRIGGER TYPE NOZZLE Lewen R. Nelson, Peoria, 111.

Application February 14, 1957, Serial No. 640,283

3 Claims. 01. 239-459 Most of the nozzles of the above noted general character which are now on the market are controlled by triggers or handles which are disposed above the nozzle when held in position for spraying or sprinkling.

The arrangement is not conducive to easy and accurate manipulation of the spray control means since that means is not Within easy reach of a finger or fingers of a hand engaged with the nozzle handle.

Therefore, the advantage of the trigger being disposed adjacent to the handle and beneath the spray control portion will be appreciated, especially in a nozzle capable of being manufactured and sold at a moderate cost.

Accordingly, one of the features of the present invention is a gun-type nozzle embodying a spray control portion including a valve stem and having a liquid admission handle unitary therewith, and wherein a trigger has one end thereof pivotally connected to said spray control portion and depends therefrom in advance ofsaid handle, and an arm extending through a slotted portion in said handle and having one end thereof connected to said trigger and the other end thereof operatively engaged with said stem.

Nozzles of the general character referred to have embodied a head open at thespray end thereof in which was disposed a plug having .a central aperture for receiving the spray end of the nozzle stem and wherein the stem was provided with a head at the spray end thereof of almost double the diameter of the spray stem. This head was guided by fins which extended the entire length of the nozzle cylinder which was necessitated by the use of the relatively large'head.

Accordingly a further feature of the present invention is a gun-type nozzlewherein the spray end of the cylinder is closed and provided with a spray aperture and wherein a relatively small diameter valve stem is disposed within said cylinder coaxially thereof, with the said stem guided by relatively short fins adjacent said aperture and an aperture in a plug threaded into the rear end of said cylinder and which plug provides for admission of the stem into said cylinder.

Other features and advantages of become apparent in the course of the following detailed description, taken in connection with the accompanying drawing, wherein:

Fig. l is a vertical sectional view of the improved nozzle as observed in the plane of line 1-1 on Fig. 3 and wherein the hose engageable end of the nozzle body the invention will trigger is indicated in dot-and-dash lines;

Fig. 2 is a fragmental sectional and elevational View as observed in the plane of line 2--2 on Fig. 1, and showing an adjacent portion of the trigger;

Fig. 3 is an enlarged plan view as observed in the direction of arrow 3 on Fig. 1;

Fig. 4 is a transverse sectional view as observed in the plane of line 4-4 on Fig. 1;

Fig. 5 is a transverse sectional view as observed in the plane of line 5--5 on Fig. 1 and wherein. the structure in said plane only, is shown;

Fig. 6 is a fragmentary plan view of the extreme outer end portion of the trigger, as viewed looking in the direction of the arrows 6 in Fig. l; and

Fig. 7 is a view taken on the line 7--7 of Fig. 6 looking in the direction of the arrows.

Referring now in detail to the drawing, the improved nozzle will be seen to comprise a unitary cast body 10 including a hose engageable handle portion 11 and a liquid spray control barrel portion 12 and wherein the axes of said portions 11 and 12 are in obtuse angular relation. 1

e The handle portion 11 is of the general transverse configuration as shown in Figures 4 and 5 wherein same comprises opposite flat side walls 13 in symmetrical relation to the central vertical plane of the nozzle body 10 and opposed outwardly convexwalls 14 which are bisected by said plane.

The free end of the handle portion 11 includes a cylindrical portion 15 whose inner wall is threaded as at 16 for removable connection with an externally threaded member on the end of a hose.

The said walls 13 and 14 converge from said cylindrical portion 15 to the relatively heavy base 17 of the spray control portion 12, which latter portion preferably has flat opposite side walls in continuation of the handle side walls 13 as is indicated in Fig. 2. The spray control portion 12 is generally cylindrical and is Provided with a closed front end except for a relatively small aperture 18 in a vertical wall 19 and whose inner edge provides a valve seat 20 for a frusto-conical valve 21 unitary with a relatively small diameter valve stem 22 disposed within the cylindrical spray control portion 12 coaxially thereof. The rear end of the portion 12 is open for reception of the valve stem 22 which is provided with a split ring 23 which acts as a stop for a washer 24 loosely supported on the stem and which washer is engaged by one end of a coil spring 25 which surrounds the valve stem 22 and engages a second washer 26 loosely encircling the valve stem 22.

The rear open end of the portion 12 is internally threadedas at 27 and at the forward end of the thread is a shoulder 28 which is engaged by a peripheral face portion of a rubber washer 29 which is in turn engaged by said washer 26 at the forward side thereof. 7

An externally threaded retainer plug 30 is removably supported in the otherwise open end of the portion 12 and same is provided with a central opening 31 in which said valve stem 22 is freely movable. An O-ring 32 is disposed in a channel in plug 30 for effectingliquid seal by the washer 29.

The rear end of the valve stem 22 is externally threaded as indicated at 33 and on which is threaded an adjusting nut 34. r

The valve stem 22 comprises a forward extension 35 having a frusto-conical surface 36 and the body portion 12 is provided with a similar surface 37 by whose joint action a spray is formed which diverges from the axis of the valve stem.

The valve stem 22 further comprises a reduced cylinend thereof and the forward end of the valve stem is guided by a plurality of circumferentially spaced ribs 39 which are unitary with the portion 12 and which extend inwardly a relatively short distance from the wall 19.

The valve stem 22 is actuated by relatively simple means disposed beneath the body portion 12 and directly in advance of the handle portion 11 for finger engagement therewith.

For this purpose, the hollow handle portion 11- is provided with a partition 40 whose lower end or bottom 41 is disposed intermediate the ends of the handle portion 11 as indicated in Fig. 1 and the partition is provided with a slot 42 which extends through fore and aft Walls 14 and which is closed at its bottom and top by said bottom 41 and the said base 17 of the body portion 12.

A curved valve stem actuating arm 43 extends through the slot 42 and has an arcuate end portion 44 slidably engaged over said valve stem cylindrical portion 38 and the opposite end of arm 43 is pivotally connected as at 45 to a trigger 46 having one end thereof pivotally connected to said base 17 as at 47.

It is to be particularly observed that the portion 40 divides the hollow handle portion 11 above the bottom wall 41 of the partition 40 into laterally opposed liquid channels 48 (Figures 3 and 5) which at their lower ends communicate with the lower hollow end of the handle portion and which at their upper ends communicate with the interior of the body portion 12 at points between the washer 29 and the ribs 39. V H

The mounting and detailsof the trigger 46 will be understood by reference to Figs. 2, 6 and 7 as views supplementary to the side elevational view shown in Fig. 1. The upper end of the trigger 46 is channelshaped. The pivot pin 47 extends through the opposite sides of the parallel arms of the channel as shown in Fig. 2. Likewise, the pin 45 extends through the oppo site sides of the channel of the trigger. The pin 47 passes through the base 17 as above indicated and the spaced sides of the channel of the trigger closely embrace the base 17. The pin 45 passes through the actuating arm 43, and that arm is spaced from the opposite sides of the channel of the trigger by freely movable spacing blocks 43 and 43 as shown in Fig. 2.

The shape of the trigger 46 is preferably of the general contour shown in Fig. l, and as having substantially parallel side walls for the channel member, those walls being indicated in Figs. 2 and 6 at 46 This parallel relation of the side Walls of the trigger is carried out for most of ,the length of the trigger 46, but at the outer end portion the trigger is preferably broadened asiridi cated in Figs. 6 and 7, and the sides of the broadened portion are indicated at 46 of Fig. 6.

The broadened portion of the trigger is indicated at 46. Thus, the view illustrated in Fig. 6 has the appearance of that portion of the trigger indicated at the arrow at the lower portion of the trigger as shown in Fig. 1.

With reference to Fig. 7, it will be observed that the same reference characters identify similar portions as are indicated in Fig. 6.

With this construction, the nozzle in use is held by a hand engaged with the handle 11 and the trigger 46 is so disposed relative to the handle that it can be easily manipulated by a finger or fingers, movement of the trigger toward the handle moves backward the arm .4 43 which, through its engagement to piston end at 38, opens valve stem at 21 for control of water throw. The threaded nut 34, by adjustment on thread 33, permits stopping valve 21 at any desired position for the amount of water flow desired.

From the above description it is apparent that the improved gun-type nozzle in accordance with the present invention is of highly simple construction while being endowed with operational characteristics not found in similar construetioris heretofore provided or proposed.

It is to be noted that the improved nozzle body is capable of being cast by relatively simple operations whereby the cost of construction thereof is at a minimum.

In the casting of the body, the handle portion requires only an inner die member having extensions for the formation of the liquid passages 48 and the slot 42 is formed by a die member which is capable of being horizontally retracted in common with a die member for the formation ofthe ribs 39 and which latter die member is retracted from the open end of the portion 12.

I claim: i

1. A gun-type spray nozzle comprising a unitary body including a spray control barrel having a valve seat in the forward end thereof, a valve stem reciprocally mounted in said barrel coaxially thereof and having a valve cooperating with said seat, said valve stem projecting from the rear end of said barrel, a liquid receiving handle projecting from the rear end of said barrel in angular relation thereto, said handle being provided with a medial partition providing liquid passages at opposite sides thereof, said partition being provided with a slot in the plane of the axis of said valve stem, an elongated finger engageable trigger disposed beneath said spray barrel and forwardly ofsaid handle, said trigger having one end thereof pivotally connected to said barrel and being normally substantially parallel with said handle, and an arm extending through said slot and having opposite ends thereof operatively engaged with said trigger and the rear end of said valve stem for actuation of thelatter upon pivotal movement of the trigger.

2. A gun-type spray nozzle according to claim 1, wherein said trigger is of channel form opening toward said handle, said arm being arcuate and having parallel opposite side walls in conformity with the opposed side walls of said slot and concave and convex opposite edges with the concave edge disposed toward said barrel, one end of said arm being disposed between the opposite side walls of said channel trigger and pivotally connected thereto, and the opposite end of the arm having an arcuate portion slidably engaged with said valve stem.

3. A gun-type spray nozzle according to claim 1 wherein said trigger in side elevation tapers from the pivotal connection thereof to said barrel to the free end thereof, and wherein same is curved inwardly toward said handle adjacent said pivotal connection and thence curved outwardly from said handle to the free end thereof, said trigger being of channel form and the free end thereof being wider than the remaining portion thereof, the side walls of the channel form trigger being spaced a' greater distance than the thickness of said arm, and spacing blocks disposed between said side walls and said arm at one end of the latter, and a pivot pin extending through said side walls, spacing blocks and arm.

Harter Oct. 6, 1931 Klauminzer Dec. 15, 1936 

